公开(公告)号：US4634276A

公开(公告)日：1987-01-06

申请号：US620784

申请日：1984-06-14

Applicant: Michael R. Sharpe

Inventor： Michael R. Sharpe

IPC: G01J3/12 ,  G01J3/18 ,  G01J3/36 ,  G02B17/06 ,  G02B5/10

CPC classification number: G01J3/18 ,  G01J3/0208 ,  G02B19/0023 ,  G02B19/0033

Abstract: Configurations of optical systems using two concave mirrors to image an off-axis slit are used advantageously in monochromators or spectrographs in which the coma produced by one mirror is cancelled by that produced by the other mirror. However, such systems produce a curved line image of a straight line slit. This curvature is substantially removed in a two concave mirror optical system in which the off-axis angle and the separation 2L between the mirrors are chosen so that the principal ray OP.sub.1 from the center of the line object to the first mirror and the principal ray P.sub.2 I from the second mirror to the center of the line image are both substantially perpendicular to an axis of symmetry of the optical system which passes through the centers of curvature C.sub.1, C.sub.2 of the two concave mirrors. The image line is then curved in a plane normal to the image plane and appears substantially straight in the image plane.

Abstract translation: 使用两个凹面镜对离轴狭缝进行成像的光学系统的结构有利地用于单色仪或光谱仪，其中由一个反射镜产生的彗形物被另一个反射镜所产生的彗差消除。 然而，这种系统产生直线狭缝的曲线图像。 这种曲率在两个凹面镜光学系统中被基本去除，其中偏离角度和反射镜之间的间隔2L被选择为使得从光线对象的中心到第一镜的主光线OP1和主光线P2I 从第二反射镜到线图像的中心基本上垂直于穿过两个凹面镜的曲率中心C1，C2的光学系统的对称轴。 然后，图像线在垂直于图像平面的平面中弯曲，并且在图像平面中基本上呈直线。

公开(公告)号：US4832491A

公开(公告)日：1989-05-23

申请号：US61239

申请日：1987-06-10

Applicant: Michael R. Sharpe ,  Stephen J. Cooke

Inventor： Michael R. Sharpe ,  Stephen J. Cooke

IPC: G01J1/44 ,  G01J3/28 ,  G01J3/42 ,  G01N21/27 ,  G01N21/59

CPC classification number: G01N21/274 ,  G01J2001/444 ,  G01J2003/2873 ,  G01J2003/421 ,  G01N21/59 ,  G01N2201/12753

Abstract: A single beam wavelength scanning spectrophotometer comprises means for passing radiation from a radiation source (1) to a radiation detector (4) over a defined path which includes a monochromator (2) capable of being scanned across a selected wavelength range, means (7) for storing a first set of signals representative of the radiation falling on the radiation detector, the first set of signals being spread across the selected wavelength range to form a first spectral response, means for inserting a sample (3) in the defined path, means for producing a second set of signals representative of the radiation falling on the radiation detector when the sample (3) is inserted in the defined path, the second set of signals being spread across a selected wavelength range to form a second spectral response, and means (7) for calculating the transmittance or absorbance of the sample at desired wavelengths from the first and second spectral responses. The ambient temperature in the region of the radiation detector (5) is monitored (6) and the first and/or second sets of signals are modified in dependence on the ambient temperature when the first and second set of signals are produced.

Abstract translation: 单波长波长扫描分光光度计包括用于将辐射从辐射源（1）传递到辐射探测器（4）的装置，该装置包括能够在选定波长范围内扫描的单色仪（2）的限定路径，装置（7） 用于存储表示落在辐射检测器上的辐射的第一组信号，所述第一组信号在所选择的波长范围内扩展以形成第一光谱响应，用于将样品（3）插入所述限定的路径中的装置 用于当样本（3）插入所述确定的路径中时产生表示落在所述辐射检测器上的辐射的第二组信号，所述第二组信号在所选择的波长范围内扩展以形成第二光谱响应， （7），用于从第一和第二光谱响应计算所需波长处的样品的透射率或吸光度。 监测辐射检测器（5）区域中的环境温度（6），并且当产生第一和第二组信号时，第一组信号和/或第二组信号根据环境温度进行修改。